1.-14*63+(-14)*37=-14*(63+37)=-14*100=-1400
2.-21*21+21*(-79)=21*[-21+(-79)]=21*(-100)=-2100
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1. = - 14* ( 63 + 37)
= -14*100
= -1400
2. = [ -21 + ( -79) ] *21
= ( - 100) * 21
= - 2100
1. = - 14.( 63 + 37 ) = - 14 . 100 = - 1400
2. = 21.[ ( - 21 ) + ( - 79 ) ] = 21.( - 100 ) = - 2100
1. -14*(63+37)=-14*100=-1400
2 21*[(-79)+(-21)]=21*(-100)=-2100